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What is one potential benefit of caffeine in supplements?

  1. Increases muscle mass

  2. Enhances fat oxidation

  3. Improves digestive health

  4. Boosts joint flexibility

The correct answer is: Enhances fat oxidation

Caffeine is commonly included in supplements due to its well-researched benefits related to fat metabolism. One of the notable advantages of caffeine is that it can enhance fat oxidation, which refers to the body's ability to break down fat stores and use them as energy. This process can be particularly beneficial during exercise, as it may help individuals utilize stored fat more efficiently, potentially leading to improved endurance and better athletic performance. While some of the other options touch on aspects of physical health and performance, they are not directly associated with caffeine's primary effects. For instance, increases in muscle mass typically result from resistance training combined with adequate protein intake, rather than caffeine consumption alone. Similarly, digestive health is influenced by a variety of dietary factors and lifestyle choices and not primarily by caffeine. Joint flexibility, too, is influenced by factors like stretching, mobility exercises, and overall fitness rather than caffeine intake. Therefore, enhancing fat oxidation is recognized as a key benefit of caffeine that supports weight management and performance in physical activities.